Whole House Sediment Filter Cartridge 4.5x20, 5 Micron, 2-Pack

Whole house water filter replacement cartridge keeps your home’s water cleaner by trapping sand, rust, and sediment before they reach taps and appliances. This 4.5" x 20" polypropylene sediment filter is designed as a first-stage cartridge to protect downstream filters, maintain stronger flow, and reduce buildup in plumbing. The layered 5-micron structure captures larger particles on the outside while filtering finer debris inside for consistent, whole-home filtration performance.

• Delivers 5-micron sediment filtration to reduce sand, rust, and suspended solids in whole-house systems


• Fits standard 4.5" x 20" (Big Blue style) filter housings for easy replacement without modifications


• Protects downstream stages by acting as the first-stage pre-filter to help extend system and appliance life


• Includes 2 polypropylene fiber cartridges built without glue or adhesives to support clean-tasting water


• Lasts 4–6 months and filters up to 100,000 gallons (varies by water quality) to cut changeout frequency

Designed for quick swaps in 3-stage whole home water filtration systems, these high-capacity sediment cartridges help keep water clearer while supporting steady pressure throughout the house. Use them as a reliable pre-filter for well water or municipal supplies where sediment, rust, and particulate buildup are common. Replace on schedule based on your water conditions to maintain performance and protect your next-stage carbon or specialty filters. Grab yours today and keep your filtration system working efficiently.

• Type: Whole house sediment filter replacement cartridge (first-stage)


• Filtration rating: 5 micron


• Material: Polypropylene fiber


• Size: 4.5" x 4.5" x 20" (115 x 115 x 507 mm / 11 x 51 cm)


• Capacity: Up to 100,000 gallons (varies by water quality)


• Service life: 4–6 months (varies by water quality)


• Quantity: 2 pcs


• Net weight: 1.8 lb (0.8 kg) each